trigger_push help please

Ok I watched 3 tutorials, did google searches and read the wiki info on this, still don't know why my trigger_push isn't working. Though I can't enter my hall from the end it is pushing toward which tells me something is working right but when in the hall i don't get pushed as i want it to do.

I made a long hallway, with a trigger textured box, then ctrl+t and added trigger_push to it then set the direction and the force at which it is pushing me. For some reason when I walk into this hallway it isn't pushing me at all. Does anyone here have any knowledge on using trigger_push?